title: A comparative study of techniques for esophageal foreign body removal with special emphasis on meat bolus obstruction.
mesh_terms: D000293:Adolescent; D000328:Adult; D000402:Airway Obstruction / Q000209:etiology*; D001842:Bone and Bones; D002648:Child; D002675:Child, Preschool; D003362:Cost-Benefit Analysis; D004945:Esophagoscopy / Q000191:economics / Q000379:methods*; D004947:Esophagus; D005547:Foreign Bodies / Q000628:therapy*; D006801:Humans; D007223:Infant; D008460:Meat / Q000009:adverse effects*; D008670:Metals / Q000009:adverse effects; D012189:Retrospective Studies
chemical_list: D008670:Metals